baber/WOPTO huggingface dataset:
Patent GB-183882-A (GB)
Title: Improvements in or relating to the manufacture of cellulose derivatives
IPC: D01F2/08
Filed: 1921-02-09
Abstract: To avoid the necessity for the ripening process in the manufacture of viscose and to obtain directly a high molecular product, cellulose, or a near conversion product of cellulose, associated with caustic alkali in a concentration of 15 per cent and upwards, preferably 20-50 per cent, and in a quantity of not more than two molecules of caustic alkali, preferably one molecule or less, per molecule of cellulose, is treated with carbon disulphide in a quantity of not more than one half molecule-for example, one fifth to one half molecule-per molecule of cellulose.  The treatment with the reduced proportion of carbon disulphide is conveniently carried out in the presence of benzol or other solvent or diluent for carbon disulphide. In an example, cellulose is treated with a 20-50 per cent caustic soda solution, and the surplus liquid separated so as to leave one molecule of caustic soda to one molecule of cellulose; either immediately or after standing, one half to one quarter molecule of carbon disulphide diluted with benzol is added, and the mixture kneaded; the diluent is eventually separated by evaporation in vacuo or by the addition of water.  The viscose is soluble in water or in alkali, and may be spun without ripening.  When used for the spinning of artifical silk or in the manufacture of films &c. the following coagulating-baths may be employed-bisulphates, or mineral acids, or weaker acids such as acetic or formic acids, or stronger acids such as oxalic acid alone or together with such weaker acids, or alkali bicarbonates; in the case of these weaker acids or alkali bicarbonate baths, the temperature of these is preferably raised to 30-40 DEG  C.
Patent GB-538450-A (GB)
Title: Process for the manufacture of an azo dyestuff containing the arseno group
IPC: C09B43/08
Filed: 1940-03-12
Abstract: 538,450. Organo-arsenic compounds. FRIEDHEIM, E. A. H. March 12, 1940, No. 4657. Convention date, April 26, 1939. [Class 2 (iii)] An azo dyestuff of therapeutic value containing the arseno group is obtained by reducing the monoazo dyestuff, 4-hydroxy-3-aminophenylarsinic acid # 1-naphthol,-4 : 8-disulphonic acid, with hypophosphorous acid in presence of hydriodic acid. Specification 2090/14, [Class 2 (iii)], is referred to.
Patent GB-865050-A (GB)
Title: Improvements in or relating to x-ray shadow microscopes with adjustable optical focussing
IPC: H01J35/14
Filed: 1958-02-13
Abstract: 865,050. X-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 13, 1958 [Feb. 16; 1957], No. 4756/58. Class 39(1). In an X-ray shadow microscope the correct focus 6, Fig. 1, of electrons upon the target 2 is secured by focusing electrons reflected from the target on to a fluorescent screen. An electron beam from gun 1, 3, 4 passes between the poles of a magnet 7, and is then focused on to a target 2 by means of electrostatic lens system 5. Reflected electrons return along their earlier path as far as the magnet 7 where they are deflected on to fluorescent screen 11, upon which an image of the focal spot 6 is formed at 10. By suitable adjustment the spot 10 is given its maximum definition and since this spot is an image of 6, the tube is correctly focused. In a modification, a skewed magnetic lens 5, Fig. 2, combines the effects of members 5 and 7, Fig. 1, so that the reflected beam is returned to a position on fluorescent screen 20 close to the aperture 21, through which the primary beam passes. A further electron lens may be. interposed between the gun and lens 5 producing an intermediate real or virtual image, which is reproduced on the fluorescent screen which is then nearer or further respectively from the symmetrical position. The fluorescent screen may be on the reverse side of the support which is then made very thin.
Patent GB-950376-A (GB)
Title: Novel cross-linked foams of elastomeric copolymers and a process for the preparation thereof
IPC: C08J9/30
Filed: 1962-02-08
Abstract: In a process for the preparation of a cross-linked foam of an elastomeric copolymer, a gelled froth of a latex of an elastomeric copolymer of at least two olefins with the formula CH2=CHR wherein R is hydrogen or an alkyl radical having up to 4 carbon atoms is subjected to ionizing radiation.  Specified olefins are ethylene, propylene, butene-1, ethylene-pentene-1 and propylene-hexene-1.  The polymer contains from about 20 to about 90 or even up to 98 mole per cent. of polymerized ethylene with the balance being the other olefin. The copolymer is converted to an emulsion by homogenizing its solution in a hydrocarbon solvent with water and an emulsifying agent, using a homogenizer or colloid mill. By adding the emulsifying agent in two portions a water-in-oil emulsion is first formed and this is then converted to oil-in-water. Suitable emulsifying agents are sodium and potassium soaps, and anionic, cationic and nonionic surface-active agents.  The emulsion is converted to a latex by flashing off the hydrocarbon solvent and the latex is concentrated by centrifuging.  The latex is converted to a foam by adding further soap, and a stabilizer such as a reaction product of ethyl chloride, ammonia and formaldehyde and whipping the mixture into a froth. Gelling is then effected by adding zinc oxide and a suspension of sodium silicofluoride. The gelled froth is then cross-linked by ionizing radiation, suitably about 25 to 200 megarads, at 2.5 megarads per minute, from a Van de Graaff accelerator.  X-ray or gamma-ray sources can also be used.  In an example the elastomer is ethylene-propylene copolymer having 63 mole per cent. of polymerized ethylene.  A 6.8% solution in benzene is emulsified in an equal volume of water to which potassium soap of disproportionated rosin acid has been added. Solvent is removed under vacuum to give a latex to which potassium oleate is added and further concentration is then effected by centrifuging. Conversion to a foam by the above method is then carried out.  Specifications 856,733, 856,735, 856,736 and 856,737 are referred to.
Patent GB-926149-A (GB)
Title: Improvements in or relating to bonds for electric cables
Inventor: NEWMAN WALTER
IPC: H01R4/64
Filed: 1960-02-12
Abstract: 926,149. Cable couplings. HEPWORTH IRON CO. Ltd. Feb. 8, 1961 [Feb. 12, 1960], No. 4983/60. Class 38 (1). An armour or outer conductor bond is formed by hooking one end 6 of a flexible metal strip 3 on to one side of an aperture 2 in one end of a connecting or bridging member 1, comprising a plurality of apertured tinned copper members 1A, 1B, 1C, and passing the strip 3 around the cable and back through the aperture, finally tightening the strip and hammering down both ends thereof on to the bridging member. When the tension to be applied to the strip is very high, a buckle 8 (Fig. 5) of tinned or galvanized steel, with an aperture slightly larger than that in the bridging member, may be added. Split-ring 12 (Fig. 5) may be placed between the armour and the cable core to prevent deformation of the latter. The other end of the bridging member may be connected to earth or by a second aperture to another bond on the same or another cable. Specification 865,980 is referred to.
Patent GB-254632-A (GB)
Title: Improvements in and relating to musical toys
IPC: G10D13/08
Filed: 1926-02-22
Abstract: 254,632. Gill, H. A., (Bar-Zim Toy Manufacturing Co., Inc.). Feb. 22, 1926. Musical toys.-In a musical toy having soundemitting elements of varying pitch, the playing faces of the elements are ridged and arranged to emit musical sounds when stroked with a playing-stick, the inequalities affording the playing- stick free passage. As shown, the members f are provided with ridges i and are supported on a frame B by means of a string k that passes through loops g<1> in the base and through holes in the members. The ridges i may be round in shape, or may be replaced by indentations. The members are of channel section and, are provided with lips h<1> which may be turned inwardly or outwardly.
Patent GB-306152-A (GB)
Title: Improvements in liquid meters
IPC: G01F15/00
Filed: 1929-02-15
Abstract: 306,152. Soc. Anon. Ateliers de Constructions MÚcaniques l'Aster. Feb. 16, 1928, [Convention date]. Liquid-meters.-In liquid-meters of the kind described in Specification 236,144, having a supply valve 28, Figs. 2 and 4, which automatically closes when a predetermined quantity has been delivered, under the action of a spring 29 and the liquid pressure and under the control of a slidable member 61 co-acting with a disc 13 driven from the meter mechanism, the valve spindle has a push member 105 slidably mounted thereon, said member having a diamond-shaped groove 106 engaged by a fixed projection 107. At the start, the valve is closed, and a roller 65 and projection 90 on the member 61 are in engagement with recessses 81, 84 respectively on the disc 13. As the member 105 is pushed in it turns through 90‹, the latter part of its movement opening the valve 28, and taking a shoulder 109 through a tapered opening 89 in the member 61, which is then moved to the left by springs 87 to free the disc 13 so that it can be rotated by the meter mechanism, with the roller 65 in contact with its periphery. The, valve is held open by the engagement of the shoulder 109 with the opening 89 until the recesses 81, 84 are again in such a position that the valve spring can close the valve, the movement of the member 105 operating the slide 61 to lock the disc 13.
Patent GB-1428308-A (GB)
Title: Electrical connections to flat conductor cable
IPC: H01R43/01
Filed: 1974-02-05
Abstract: 1428308 Two-part couplings AMP Inc 5 Feb 1974 [20 Feb 1973] 05158/74 Heading H2E A contact for connection to a flat flexible cable 22 comprises a leg 44 and a backing member 42, the backing member adapted for bearing against one side of the conductor and the leg for passing from the one side to the other side and penetrating the other in alignment with the backing member. The connector comprises two portions 36 joined by bights 40 to form a receptacle for a tab contact (not shown), and a backing member 42 extends from each portion 36 being folded double and integral with a leg 44. A backing surface 49 bears against the cable, the legs 44 extending through a preformed opening 30 and being subsequently curled so that the free ends 48 pierce the cable, engage the cable conductor 24 and overlap the bearing members 42. In other embodiments (not shown) contacts each comprise a tab, one leg and one backing member; the free end of the leg is tapered to aid piercing and the backing member may have an inclined portion (e.g. 85, Fig. 6) to deflect the free end of the leg. Conductive grit may be applied to the backing surface to enhance contact between the leg and cable conductor.
Patent GB-734751-A (GB)
Title: Apparatus for forming pre-cast slabs from concrete or similar material
IPC: B28B5/02
Filed: 1950-03-01
Abstract: 734,751. Moulding concrete slabs &c. ABBOTT, F. W. May 29, 1951 [March 1, 1950], No. 5188/50. Class 87 (2). Apparatus for casting concrete or cement-breeze slabs comprises, Figs. 1 and 3, two stationary longitudinal parallel side plates 2 that form the sides of moulds; transverse division plates 8 that form the ends of the moulds and are mounted on conveyer chains 5 running over sprockets 6, the upper reach of the chains travelling from right to left; flat pallets 3 that form the bottoms of the moulds and are pushed along tracks 4 by the plates 8; an open-bottomed hopper 1 from which concrete &c. is delivered into the moulds, the front edge 9 of the hopper strickling the concrete; and automatically-operated means for tamping the concrete in the moulds, this means comprising a flat-faced tamper 12 which is operated to ram down the concrete with repeated blows and at the same time to move over the concrete in the same direction as the concrete but at a quicker speed so as to force some of the concrete towards the front edge of the pallet, whereby a slab of even density is formed. The tamper 12 is curved up at its leading edge 18 and is extended forward for pivotal mounting on a shaft 13. The tamper is depressed repeatedly by a cam 14 and raised by a spring 17. The mould sides are ribbed and grooved to provide grooved and ribbed slabs, Fig. 2 (not shown), or may be plain. Automatic vibrators may act on the mould sides 2 or on the conveyer or a pallet. The upper surface of the concrete may be acted on by a vibrator. The tamped material may be finished off by a roller. A pressure roller may be used before the tamping device 12. Fig. 4 shows a modified tamper pivoted at 19a and raised by spring 21. Fig. 5 shows a modified machine in which the tamper 25 has rollers 26 working in side guides 27 and is operated by side eccentrics 14a and arms 15a. The leading end of this tamper travels in a horizontal plane or may be given a slight lift. The division plates 8 have ribs 23 and grooves 24. The side plates 2 may be plain or ribbed and grooved. Fig. 7 shows another tamping device comprising tampers 28 carried by travelling endless chains 29 the rear sprockets 30 of which raised and lowered by levers 31 operated by eccentrics. The chains and/or tampers may run in or engage guides 32. The chains may be tensioned by a spring-loaded jockey roller 33. A finishing roller may be located near the delivery point.
Patent GB-1329674-A (GB)
Title: Process for the production of alkyl isothiocyanic acid esters
IPC: C07C331/20
Filed: 1972-02-04
Abstract: 1329674 Preparation of alkyl and alkoxyalkyl isothiocyanates DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 4 Feb 1972 [5 Feb 1971] 5244/72 Heading C2C Isothiocyanates R-N=C=S, where R is C 1-6  alkyl optionally substituted by one or more C 1-4  alkoxy groups, are made by reacting the corresponding alkali metal, alkaline earth metal, ammonium or alkylammonium N-alkyl- (or alkoxyethyl) thiocarbamates with aqueous H 2 O 2  at 50-120 C. and pH 5-9, using at least one mol. H 2 O 2  per mol. thiocyanate.
Patent GB-511582-A (GB)
Title: Earth moving device
IPC: E02F3/64
Filed: 1938-02-19
Abstract: 511,582. Excavating &c. DEHN, F. B. (La Plant-Choate Manufacturing Co., Inc.). Feb. 19, 1938, No. 5316. [Class 68 (i)] In an earth-moving machine wherein a wheeled frame pivotally carries a bowl provided with sides, a bottom, a front apron and a rear gate, and the frame may be adjusted relatively to the wheels to control the relative positions of the front apron and rear gate, the rear gate is supported from the frame and means are provided for permitting movement of the rear gate dependent on the movement of the bowl relatively to the frame. A frame F, connected at 14 to a tractor &c., is pivoted at 15 to arms WA on which wheels W are journalled; a hydraulic jack J acts between the frame F and a U-frame 17 fixed to arms WA to adjust the positions of the parts, the piston rod of the jack J being preferably surrounded by a bellows 26 to exclude dirt. A bowl B, open front and rear and provided with a scraper blade SB with opposite notched cutting edges, is pivoted at 27 to the frame F, and a front apron A, with a renewable lower edge 31, has side plates 32 pivoted to the bowl at 33; spaced inside the plates 32, the apron has narrow side plates 32a overlapping angles 33a secured to the bowl. The side plates 32 have at their lower edges cam surfaces 35 co-operating with rollers 36 carried by the arms WA to control adjustment of the apron. Angle irons 38 on the bowl sides co-operate with inward extensions of the wheel shafts 16 to pre-. vent dumping of the bowl when the machine is backed. Toggle links 43, 44 are connected at their free ends at 39, 42 to the bowl and arms WA, respectively, the links 44 being adjustable and stops 46, 47 limiting relative movement of the links. A rear gate G is connected by parallel links 50 to the frame F and has side plates 49 carrying rollers 54 co-operating with cam tracks 55 on the upper edges of the bowl; gussets 48a on the gate engage notches 27d in the bowl when the latter is in digging position to limit rotation of the bowl. In use, inward movement of the jack piston lowers frame F to bring the bowl into scraping position, cam surfaces 35 and rollers 36 co-acting to open the apron A. Partial outward movement of'the jack piston lifts the bowl to carrying position with the apron closed; further outward movement of the piston tilts the bowl rearwardly and away from the gate for dumping, while when the toggles 43, 44 reach their extended limit, they rock the bowl about its pivots so as, through cam tracks 55 and rollers 54, to permit varied movement of the rear gate G and thereby adjustment of the depth at which the gate spreads the spoil.
Patent GB-1058665-A (GB)
Title: Controls for vibratory apparatus
Inventor: YEASTING MAYNARD CHARLES
IPC: B65G27/16
Filed: 1964-02-07
Abstract: 1,058,665. Vibrating sieves. CHAIN BELT CO. Feb. 7, 1964, No. 5352/64. Heading B2H. [Also in Division B8A]. A vibrating conveyer trough or sieve 20 is supported from base 22 by air cushions 21 and is vibrated by out of balance weights 26 which are carried by casing 24 supported by arms 28 pivoted to casing 27 secured to trough 20; and casing 24 is connected directly to the trough 20 by spring 23. The amplitude of vibration transmitted by the weights to trough 20 is varied by air cushions 32 which are contained within extension 35 (Fig. 2 not shown) of the casing 24 which carries the vibrating weights 26, the cushions being connected by casing 36 to damper mass 31 carried by links 33. Mass 31 moves with casing 36. The pressure of air within the cushions 32 is varied by air introduced from 37 at 39. This varies the elastic connection between mass 31 and casing 24 to vary the amplitude of vibration. The position of the air cushions 32 in the system may be varied.
Patent GB-349026-A (GB)
Title: Improvements in, or relating to, navigating instruments for use on aircraft
Filed: 1930-02-19
Abstract: 349,026. Gyroscopic apparatus for navigating aircraft. HEWISON, W. E., 3, Lancaster Place, Strand, London. Feb. 19, 1930, No. 5478. [Classes 97 (ii) and 97 (iii).] One or more of the pivotal supports of a gyroscopically stabilized member are connected. by mechanical transmission to a pivoted body adapted to turn about its pivot in a manner corresponding to the movements of the aircraft relative to the horizontal plane. In the form shown a model aeroplane 4 is supported by a transverse tube 15 rotatably mounted in a cylindrical casing 5. The latter is mounted for rotation about its own axis by the engagement of flanges 25 on the ends of the casing with rollers 26 in the main casing 1. The model is thus able to rotate about longitudinal or transverse axes. The movements of the model are controlled by a gyroscope 9 mounted by transverse trunnions 10 in a gimbal ring 12 which is mounted by longitudinal trunnions 13 in the casing 1. To indicate pitching of the aircraft a gear wheel 24a fixed on a trunnion 10 is adapted through the ring 23, gear wheels 22, 21, 19, ring 18 and gear wheel 17 to tilt the tube 15 and model 4 through twice the angle of tilt of the gyroscope relative to the casing. To indicate rolling a toothed annulus 32 fixed to the gimbal ring 12 is adapted through gearing 31, 30, 28, 27 to rotate the casing 5 together with the model 4 about its longitudinal axis. To indicate yawing of the aircraft the model may be mounted on a vertical pivot carried by the tube 15. The model is caused to turn on this pivot by a small crank connected to a rod 36 inside the tube 15. An air pressure operated device on the wings of the aircraft is adapted to move a ring 48 axially as the aircraft yaws. The ring 48 is adapted through levers 45, 47 to move a sleeve 41 to which the rod 36 is connected. The model is viewed by the pilot through the opening 3. An instrument case 2 is placed behind the model so that the pilot may simultaneously view engine speed, air speed and altitude indicators. A reflector 6 may be provided to reflect the readings of a compass in the base of the casing 1 through the opening 3.
Patent GB-539287-A (GB)
Title: Improvements in or relating to electric gas-discharge tubes and starting arrangements therefor
IPC: H05B41/232
Filed: 1940-03-29
Abstract: 539,287. Discharge lamps. PHILIPS LAMPS, Ltd. March 29, 1940, No. 5730. Convention date, April 1, 1939. [Class 39 (i)] [Also in Group XXXV] A gas discharge tube which is started by a circuit producing a voltage higher than that of the supply circuit has an additional contact 6 on its lamp cap or caps connected through a conductor 9 with another of the cap contacts so that the high voltage cannot be produced if the lamp is not in its holder. Fig. 1 shows an inductance 14 adapted to open a switch 18 to produce a high voltage for starting, the switch being arranged in series with the conductor 9. This conductor may be fusible so as to open the starting circuit after a time should the tube fail to start. Fig. 2 (not shown) illustrates the invention applied to a tube with heated cathodes and caps as described at each end, and in which the conducting link in one cap is included in series with a resonant circuit producing the high voltage.
Patent GB-1351074-A (GB)
Title: Rolling mills
IPC: B21B27/10
Filed: 1972-02-08
Abstract: 1351074 Rolling HITACHI Ltd 8 Feb 1972 [15 Feb 1971 4 Aug 1971] 5809/72 Heading B3M A rolling mill with work rolls 23, intermediate rolls 11, 12 and back-up rolls 25-28 has the intermediate rolls mounted for axial adjustment so that on alternate sides of the work rolls one end thereof is not supported over the zone outside the strip 1 width. The work rolls are bent by hydraulic rams 9, 10. The intermediate rolls are tapered 13, 14 at alternate ends and each is driven by an electric or fluid motor through shafts 15, 16. In an alternative embodiment, Figs. 3 and 4, there are only two back-up rolls 42, 43. The intermediate rolls of this embodiment are driven through shafts 70, 71 and universal joints 72-75 from a single electric or fluid motor through a pinion stand speed reduction device 76. The shafts 70, 71 are splined at their ends 77, 78 remote from the mill and axially moved by hydraulic piston-cylinder units 85, 86 or by a screw-nut device (104), (106), Fig. 6 (not shown) through a lever linkage (101), (103) actuated by an electric motor (107) with a belt drive (110). The work rolls may be cooled by sprays (134), (135), Fig. 7 (not shown), and the strip pressed between plates (130), (131). In operation the intermediate rolls are axially adjusted so that their tapered ends are positioned in alignment with the edges of the strip, Fig. 2. The parts of the work rolls which do not contact the strip at each side of the strip are not effected by the intermediate roll at one end of the roll to reduce undesired bending of the work rolls and uneven strip thickness.
Patent GB-178647-A (GB)
Title: Improvements in or relating to devices adapted for use in glazing structures such asroofs, lights, conservatories, glasshouses and the like
IPC: E04D3/14
Filed: 1921-02-21
Abstract: 178,647. Furness, J. A., and Richardson, W. L. Feb. 21, 1921. Roofs, slating.-Slates &c. are secured in position by means of a hook 2 which engages the lower edge of the slate, and has a prolongation 1. adapted to be secured by spikes 3 or by nails driven into the inner protected portion of the supporting rails &c. extending at right-angles to said edge.
Patent GB-1075581-A (GB)
Title: A process for the electro-deposition of a paint coating
Inventor: RANSOME JOHN GOOCH
IPC: C25D13/20
Filed: 1965-02-10
Abstract: A metal article, e.g. of steel, is first electroplated with a thin porous layer of zinc from an alkaline bath and is then coated with paint electrophoretically. As described, the zinc plating bath is formed by dissolving zinc dust in aqueous caustic soda or potash, and the paint is a water soluble alkyd-phenolic resin solution containing ammonia and is anodically deposited while the zinc plated article is still wet after washing off the zinc plating bath.  The paint coating is finally baked.